<input #fileUpload ngFileSelect type="file" [options]="fileUploaderOptions" (onUpload)="_onFileUpload($event)" (beforeUpload)="beforeFileUpload($event)" hidden="true">
<div class="input-group" [ngClass]="{uploading: uploadFileInProgress}">
    <input #inputText type="text" [value]="defaultValue" class="form-control" readonly>
    <span class="input-group-btn">
      <button class="btn btn-success" type="button" (click)="bringFileSelector();">Browse</button>
  </span>
</div>